In the fingernails on a blackboard study, when subjects were told the fingernail scratching was actually music, what happened?

Notice: This question and its associated answer set are protected under copyright, and may not be reproduced without the author's consent.

Question

In the fingernails on a blackboard study, when subjects were told the fingernail scratching was actually music, what happened?

Notice: This question and its associated answer set are protected under copyright, and may not be reproduced without the author's consent.

BlackTom AI · Accepted Answer

Cognitive reappraisal (labeling a stimulus differently) can change emotional and perceptual reactions, so telling participants the scratching sound was “music” altered their response.

1) Relevant knowledge points and concepts
- Affective appraisal: emotional responses to stimuli depend not only on sensory features but also on cognitive interpretation (top-down processing).
- Framing effect: labeling or context can change subjective evaluations.
- Auditory aversion: sounds like fingernails on a chalkboard produce negative affect due to specific high-frequency harmonics, but interpretation can modulate that affect.

2) Step-by-step reasoning
- Step 1: The raw acoustic properties of fingernail scraping usually evoke a negative reaction because of their spectral and temporal qualities.
- Step 2: Introducing a cognitive label (“this is music”) provides a new interpretive frame that shifts expectations and attention.
- Step 3: With the new frame, participants reappraise the sound’s meaning (from aversive noise to intentional musical expression).
- Step 4: This reappraisal reduces negative valence; participants report or show a diminished negative response compared with the baseline reaction.

3) Intermediate steps / calculations
- No numeric calculations are required. Intermediate logical steps are: sensory input → cognitive label applied → change in appraisal → reduced negative affect.

4) Why the correct answer is correct
- The study demonstrates that top-down cognitive labeling attenuates the instinctive negative reaction to an acoustic stimulus. By calling the sound “music,” participants’ affective evaluation shifted, so they did not respond as negatively.

5) Why the other options are incorrect
- Option 1 (They started to dance): Implausible and not reported; mere relabeling doesn’t typically induce spontaneous dancing.
- Option 2 (They responded negatively): This contradicts the study’s finding of attenuated negative response.
- Option 3 (Their definition of music expanded): The experiment manipulated perception of a specific sound, not participants’ conceptual definitions.
- Option 4 (The sound affected more regions of their brain): The reported outcome focused on subjective/behavioral response changes, not an increase in affected brain regions.

6) Conclusion
The correct outcome is that when told the scratching was music, participants didn’t respond as negatively to the sound, matching the provided answer (5).

In the fingernails on a blackboard study, when subjects were told the fingernail scratching was actually music, what happened? Notice: This question and its associated answer set are protected under copyright, and may not be reproduced without the author's consent.Single choice

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